help with wiring harness...

[bstran11693 10+ year member]

Hey guys i just got the JVC KD-R620 from crutchfield and got all the necessary harnesses and all that.. and tonight i strarted crimping all the wires and in the one harness there were 2 extra wires not connected in the bigger harness Receiver Wire Harness For select 1995-up Audi, Chrysler, Ford, Porsche, Saab, and Volkswagen models at Crutchfield.com and i dont know what they are for. There is an all blue one and a white and blue one. There are 2 open spots for wires with the tab tip on them, but i also got one of these Antenna Adapter Connect the factory antenna cable in your vehicle to any aftermarket stereo Works with a variety of 1994-up European and American vehicles at Crutchfield.com and it has that blue wire with a tab on the end. So I have 3 tabbed wires for 2 slots? I don't know where these wires go so any help is greatly appreciated!

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[bstran11693 10+ year member]

correction: the blue and white wire doesnt have a tab tip thing on it. Only the blue one coming from the antenna adapter, and the blue one that was with the harness have the tab.

 

[keep_hope_alive Premium Member]

blue is power antenna connection.

blue/white is external amplifier turn-on.

if you have a power antenna, you need to connect the blue wire for it to work.

if you have external amplifiers, you need to connect the blue/white wire to the amplifier turn-on terminal.

This adapter also supplies power to the factory antenna booster.

you connect the blue wire on the JVC harness to the blue wire on the antenna adapter - this will power the factory antenna booster.

you will not need to connect the blue/white wire unless you install external amplifiers or if the car has factory amplifiers.